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Finding the Fourth Proportional to 35,366.98, 48,799.92 and 21,031.60

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Solution

The fourth proportional to 35,366.98, 48,799.92 and 21,031.60 is: 29,019.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,366.98 : 48,799.92 = 21,031.60 : x
  2. Step 2: Convert to fraction form
    35,366.98/48,799.92 = 21,031.60/x
  3. Step 3: Cross multiply
    35,366.98x = 48,799.92 × 21,031.60
  4. Step 4: Simplify right side
    35,366.98x = 1,026,340,397.47
  5. Step 5: Solve for x
    x = 1,026,340,397.47/35,366.98
  6. Step 6: Final answer
    x = 29,019.74

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.